Taxonomic study on the molluscs collected in Marion-Dufresne expedition (MD 55) to SE Brazil: Xenophoridae, Cypraeoidea, mitriforms and Terebridae (Caenogastropoda) Author Simone, Luiz Ricardo L. Author Cunha, Carlo M. Museu de Zoologia da Universidade de São Paulo, caixa postal 42494, 04218 - 970 São Paulo, SP (Brazil) lrsimone @ usp. br lrlsimone @ gmail. com lrsimone@usp.br text Zoosystema 2012 2012-12-31 34 4 745 781 http://dx.doi.org/10.5252/z2012n4a6 journal article 10.5252/z2012n4a6 1638-9387 5166650 857CAD31-66E1-4CEE-AB4D-CCD64541D0EF Lamellaria spp. ( Fig. 3G, H ) MATERIAL EXAMINED . — Brazil , Espírito Santo , off Itaúnas, continental slope of Abrolhos, 18°59’S , 37°48’W , 607- 620 m depth, MNHN , 1 shell ( MD 55, stn DC 73, Bouchet, Leal & Métivier coll., 27. V .1987 ).— Off Regência, 19°40’S , 37°48’W , 790-940 m depth, MNHN ,1 shell (stn CB 77). — Off Conceição da Barra, 18°59’S , 37°47’W , 1540-1550 m depth, MNHN , 3 shells (stn CD 70, 26. V .1987 ). MEASUREMENTS (in mm). — MNHN (stn DC73): 3.7 × 2.7. DISCUSSION ON LAMELLARIIDS Typical shells of Lamellaria were collected in the three above-mentioned stations. However, nothing more precise than the generic attribution is possible, as the identification of lamellariid species, only based on the vestigial shells, is complicated. Anyway, the shells of the three lots appear to belong to different species. Those of the MNHN lot (stn DC73) are more rounded and with a thicker-walled shell ( Fig.3G, H ). The shell of the MNHN lot(stn DC77) is more elongated and thinner-walled. And the shells of the MNHN lot (stn DC70) are oval, with a wider aperture, and possess delicate transverse undulations on the last whorl. The first indication is that the three lots may represent different species, which only can be defined with additional samples. Family PEDICULARIIDAE Gray, 1853